Improvement in apparatus for electroplating



H. & H. W. LVEJY, J. H. FERGUSDN, & M. l. CREE-GAN.

fQitmgparatus for Electropla'ting. N.0,15l,892.- Patentedjune9,1874.

UNITED STATES PATEuTAEIcE.

HENRY LOVEJ OY, HENRY W. LOVEJOY, AND JAMES H. FERGUSON, OF BROOKLYN,AND MICHAEL J. OREEGAN, OF NEW YORK, N. Y.

IMPROVEMENT IN APPARATUS FOR ELECTROPLA'TING.

Specification forming part of Letters Patent No. 151,892, dated June 9,1874; application filed April 2R, 1874.

- a mold by wires or hooks hanging on a rod placed across the top of thetrough, the rod being attached by suitable connections with the battery,and, in some cases, the wires or hooks making the connection between themold and the rod. This method makes a sure connection, but requires thatall metallic surfaces where deposit is not required shall be insulatedwith some non-conducting substance.

In another method sometimes practiced, the rod from which the mold issuspended is not -in the circuit 5 but there is an additional rod,

which is in the circuit, from which the connection with the mold is madeby wires or thin strips of metal. This method is less convenient andexpeditious in hanging the molds in the bath, but saves time inpreparing the mold,

and as the case is not in the circuit there is no liability of copperbeing deposited upon it.

Athird and more inconvenient method sometimes practiced is to clamp thecase to a wooden frame and suspend the whole by hooks, the electricconnection being effected by wires einbedded in the wooden frame.

Our invention is designed to obviate the necessity of insulating thecases by covering them with non-conductin g substance, and, at the sametime, to make the connection certain, and with as little trouble as bythe methods referred to.

The invention consists in a metallic bar, provided with a hook forhanging it on the rod over the trough, having the lower end of the bardivided and extending laterally so as t0 form two arms to bear againstthe mold, and having between said arms a socket for the re ception ofinsulating substance, through which passes a hook for suspending thecase.

In the accompanying drawing, Figure lis a front view of our improvedhanger. Fig. 2 is a side view of the same. -Fig. 3 is a sectional viewof the lower portion ofthe hanger.

A is a metallic bar, having a ring, a, at its upper end for convenienceot' handling. Just below the ring is a hook, b, for suspending the barfrom the rod over the trough. The lower end of the bar is divided so asto form two arms, c c, which extend laterally a short distance on bothsides of the bar, and then turn toward the front, so that their endswill form bearers for the mold. Between the arms, at the lower end ofthe bar, is a socket, c, which is iilled with rubber or other suitableinsulating substance, through which passes a hook, f, for holding thecase or frame containing the mold to be coated. The case or framecontaining the mold to be coated is suspended from the hook f, and thehanger is suspended by hanging the hook b on the rod over the trough atsuch a distance above the surface of the bath as to prevent theimmersion of the hanger in the bath, but allow the mold to becompletely' immersed. A strip of copper is placed on the face of themold under each of the bearers c, each strip being long enough to reachbelow the surface of the bath, and thus complete the circuit from thehanger to the coated surface of the mold. The lower portion of the baris bent in such form as to bring the bearers c in a vertical linedirectly under the hook b, so that the mold will hang in the properposition in the bath.

Being made entirely of metal, without screws or movable parts, thishanger is cheaply made, and is strong and durable.

Vhat we claim as new, and desire to secure by Letters Patent, is-

The .hanger consisting of' the bar A, the arms or bearers c c, thesocket e, the insulator d, and the hook f, combined substantially asshown and described.

HENRY LOVEJ OY. HENRY L LOVEJ OY. JAMES H. FERGUSON. MICHAEL J. OREEGAN.

Witnesses F. E. BARNARD, WiLLIAM BIKER.

